Many inventions require their features to be defined in terms of a numerical range. For example, a manufacturing process may be operable over a range of temperatures, or a material composition may be produced using components combined in a range of proportions. A patent application usually provides one or more examples of the working invention […]
A recent decision of the Court of Appeal to overturn the High Court ruling in an ongoing dispute between GSK and Vectura Limited has once again brought the validity of Arrow declarations to the forefront of UK patent law. An Arrow declaration provides commercial certainty or freedom to operate surrounding the marketing of a product […]